Customizing image properties, Automatic optimization, Noise reduction – LEICA M11 Monochrom Rangefinder Camera User Manual
Page 76: Noise reduction function for long-term exposure

STILL IMAGE SETTINGS ▸ AUTOMATIC OPTIMIZATION
76
CUSTOMIZING IMAGE PROPERTIES
▸
Select
JPG Settings
in the main menu
▸
Select
Customize image properties
▸
Select
Contrast
/
Sharpness
▸
Select the desired level
(
-2
,
-1
,
0
,
+1
,
+2
)
▸
Confirm
Note
• This setting will only affect images in JPG format.
AUTOMATIC OPTIMIZATION
NOISE REDUCTION
NOISE REDUCTION FUNCTION FOR LONG-TERM EXPOSURE
In digital photography, the appearance of flawed pixels that can be
white, red, blue or green is referred to as "noise". Image noise be-
comes more apparent when using higher sensitivities, particularly on
uniform dark areas. Long exposure times may cause severe image
noise. In order to reduce this annoying phenomenon, the camera
will take a second “black picture” (taken with the shutter closed)
automatically after a shooting with slow shutter speed and high
ISO value. The noise metered in this parallel image is then digitally
“subtracted” from the data for the actual image. In such cases the
message
Noise reduction in progress...
will appear with a relevant
time value.
The doubling of the “exposure” time must be taken into account for
long-term exposure times. The camera must not be switched off
during that time. We recommend disabling Noise Reduction to allow
shooting multiple frames in series and to apply noise reduction later
during the post-editing stage. The images will have to be taken in
raw data format.
Factory setting:
On
▸
Select
Noise Reduction
in the main menu
▸
Select
On
/
Off